*{
	margin: 0;
	padding:0;
}
#index_body{
	width:641px;
	position:absolute;
}
#index_menu{
	 height:573px;
	background-image: url('../index_menu_bg.png');
}
.index_right{
	height:100px;
  	float:right;
  	margin-right: 50px;
  	margin-top: 90px;
}
.index_left{
	height:100px;
  	float:left;
  	margin-left: 50px;
  	margin-top: 90px;
}